Chemistry: electrical and wave energy – Processes and products – Vacuum arc discharge coating
Patent
1975-05-09
1977-01-18
Kaplan, G. L.
Chemistry: electrical and wave energy
Processes and products
Vacuum arc discharge coating
324 29, 324 71R, 324 72, 324 76A, G01N 2746, G01N 2742
Patent
active
040038157
ABSTRACT:
An electrolytic corrosion measuring apparatus comprising a first terminal to be connected to an electric conductor, such as a rail of electric railways, water pipe, gas pipe, telephone cable, power cable or the like, installed in electrical contact with the earth and a second terminal to be connected to an earthed reference electrode; a solid state electrochemical potential memory device which exhibits a terminal voltage between an anode and a cathode linearly changing as a function of the charging or discharging quantity of electricity fed to the device and which is capable of holding the terminal voltage, said device being connected to the terminals to receive an input therefrom; an amplifier for amplifying the terminal voltage of the device; and a meter for displaying the output of the amplifier. A preferred embodiment of the present invention comprises two sets of such memory device, amplifier and meter: one being for a positive going component of the input and the other for a negative component. The value indicated by the meter is associated with an amount of electrolytic corrosion occurring in the conductor during a time period when the apparatus is connected to the conductor and the earth, and thus affords a qualitative measurement indication of the amount of electrolytic corrosion so occurring.
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Ikeda Hironosuke
Kutsuyama Hiroshi
Yamada Makoto
Kaplan G. L.
Sanyo Electric Co,. Ltd.
Weisstuch Aaron
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